How much dense is in the air in the troposphere?

The density of air in the troposphere varies with altitude, temperature, and pressure, but it generally decreases with height. At sea level, the average air density is about 1.225 kg/m³, but it can drop to around 0.4 kg/m³ at altitudes of 10,000 meters (33,000 feet). This decrease in density is primarily due to the reduction in atmospheric pressure and temperature as altitude increases.